Search a number
-
+
220041431 = 271811961
BaseRepresentation
bin11010001110110…
…01000011010111
3120100001021002122
431013121003113
5422312311211
633500130155
75311215131
oct1507310327
9510037078
10220041431
11103231425
126183695b
133678353c
142131c051
15144b76db
hexd1d90d7

220041431 has 4 divisors (see below), whose sum is σ = 220853664. Its totient is φ = 219229200.

The previous prime is 220041377. The next prime is 220041433. The reversal of 220041431 is 134140022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220041431 - 226 = 152932567 is a prime.

It is a super-2 number, since 2×2200414312 = 96836462713055522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220041433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 405710 + ... + 406251.

It is an arithmetic number, because the mean of its divisors is an integer number (55213416).

Almost surely, 2220041431 is an apocalyptic number.

220041431 is a deficient number, since it is larger than the sum of its proper divisors (812233).

220041431 is an equidigital number, since it uses as much as digits as its factorization.

220041431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812232.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 220041431 is about 14833.7935471679. The cubic root of 220041431 is about 603.7189669232.

Adding to 220041431 its reverse (134140022), we get a palindrome (354181453).

The spelling of 220041431 in words is "two hundred twenty million, forty-one thousand, four hundred thirty-one".

Divisors: 1 271 811961 220041431